Modular Electrical Switch with Segmented Enclosure for Safety Compliance
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Solution Overview
Problem
Existing electrical switches lack flexibility in meeting varying market-specific safety requirements for air gaps and leakage paths, requiring costly and complex modifications to adhere to different standards.
Innovation Solution
A modular electrical switch design featuring a basic enclosure, insulating parts, enclosure extensions, terminal covers, and separate closure parts, allowing for easy reconfiguration by clipping and snapping components together to adjust air gaps and leakage paths according to specific safety standards, with the option to use or omit the enclosure extension and closure parts as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the switch is designed with fixed air gaps and leakage paths, then the manufacturing is simple and cost-effective, but the switch cannot adapt to different market-specific safety requirements
Solution Approach 1:
The switch enclosure is segmented into modular components: a basic enclosure and optional enclosure extensions that can be clipped on or off. This segmentation allows the air gap and leakage path dimensions to be adjusted by selecting different combinations of modules, enabling adaptation to various safety requirements without redesigning the entire switch structure.
Solution Approach 2:
The switch design incorporates dynamic configurability through optional enclosure extensions that can be added or removed based on the required safety standards. This allows the physical dimensions (air gaps and leakage paths) to be dynamically adjusted after manufacturing, transforming a static design into a flexible one that adapts to different market requirements.
2Reliability
If enclosure extensions are added to increase air gaps and leakage paths, then safety standards are met, but the switch length increases and manufacturing complexity increases
Solution Approach 1:
The enclosure is divided into a basic enclosure and separate extension modules. Each extension module contains standardized connection interfaces that allow them to be attached only when and where needed, minimizing the increase in overall length while providing the necessary air gap and leakage path extensions for safety compliance.
Solution Approach 2:
Instead of uniformly increasing the entire switch length, the enclosure extensions are applied locally only at specific connection sides where safety requirements demand larger air gaps and leakage paths. This localized approach minimizes the overall length increase while achieving the necessary safety standards.
3Reliability
If separate closure parts are used to seal gaps on the enclosure underside, then finger-proof protection is improved, but the assembly complexity increases
Solution Approach 1:
The closure parts are designed to be integrated with the insulating parts through snap-fit connections, merging two functions (insulation and closure) into a single assembly operation. This reduces assembly complexity compared to using completely separate components, as the closure part attaches to the insulating part that is already being installed.
Solution Approach 2:
The closure parts feature self-aligning snap-fit connections that automatically position themselves during assembly, reducing the need for precise manual alignment and complex assembly procedures. The snap-fit mechanism provides self-guiding during installation, making the assembly process simpler despite adding functional complexity.
Data Source
AI summary
An embodiment of the invention relates to an electrical switch having a basic enclosure with an enclosure top side, an enclosure underside and at least one lateral connection side at which at least one connection contact disposed inside the enclosure of the switch is accessible for the purpose of effecting an electrical connection from outside, and a terminal cover which closes off the connection side laterally at least in sections. It is provided according to at least one embodiment of the invention that an insulating part is clipped onto the basic enclosure on the connection side of the basic enclosure, the insulating part separating the connection contact from the enclosure underside, an enclosure extension which increases the length of the switch being clipped onto the basic enclosure on the connection side of the basic enclosure, a terminal cover being clipped onto the enclosure extension, a gap remaining between the insulating part and the terminal cover when viewed from the enclosure underside, and a separate closure part which seals the gap on the enclosure underside being disposed in the gap.